<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Pointer jump when lifting one finger in slow two finger scroll" href="https://bugs.freedesktop.org/show_bug.cgi?id=91695#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Pointer jump when lifting one finger in slow two finger scroll" href="https://bugs.freedesktop.org/show_bug.cgi?id=91695">bug 91695</a> from <a class="email" href="mailto:benjamin.tissoires@gmail.com" title="Benjamin Tissoires <benjamin.tissoires@gmail.com>"> Benjamin Tissoires</a> <pre>Could you please attach a dmesg of your kernel from the boot that we have a little bit more information? I don't get why you are experiencing these jumps. Both 4.1.5 and 4.2.5 have a commit which split out touches when the distance between 2 fingers is greater than 1 cm. Your recording (at 3.52s) seems to indicate a distance of ~2 cm between your fingers and so there should not be a cursor jump. There has been some back and forth for this part of the code in the kernel, and we should have fixed this particular case. It looks like your case is not fully covered (have you tried putting your fingers on the same horizontal level?), and we are screwing here. Unfortunately, the code we are talking about is the only part in the kernel we do not understand because it is undocumented. We tried pushing documentation but that was simply refused. The only light of hope (besides reducing the dmax variable in the kernel or trying to space your finger more) is that in theory, the switch of your touchpad in the rmi4 mode might solve this particular issue because we will be using a different code path (not entirely sure here though). This work is still a WIP (for nearly 2 years now).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>